@media only screen and (max-width:640px){
    .about .about_mainvisual {
        height: 100vh;
    }
    .about_mainvisual .about_title {
        margin-top: 14.7vh;
    }
    .about_mainvisual h1 {
        margin-bottom: 6.4vh;
        padding: 0 32px;
    }
    .about_mainvisual h1 img {
        width: 42vw;
    }
    .about_mainvisual h1 .subtitle.spEng {
        font-size: 3.7vw;
        margin-top: -4.2vh;
        margin-bottom: 16px;
    }
    .about_mainvisual .about_title p {
        font-size: 3.2vw;
        padding: 0 32px;
        text-align: center;
    }
    .about_mainvisual .about_title .slogan {
        font-size: 4.2vw;
        letter-spacing: 0.02em;
        margin-bottom: 16px;
    }
    .about_mainvisual .penlist_outer {
        height: 74.6vh;
        overflow-x: hidden;
    }
    .about_mainvisual .penlist li {
        width: 5.6vw;
        height: auto;
        margin-left: 2.7vw;
        margin-top: 74.6vh;
    }
    .bannerlist {
        margin-bottom: 80px;
    }
    .bannerlist .bannerlist_content {
        margin-left: 0px;
        margin-top: -19vh;
        flex-direction: column;
        align-items: center;
    }
    .bannerlist .bannerlist_content li {
        width: 75.7vw;
        max-width: none;
        height: auto;
        max-height: none;
        margin-right: 0px;
        border-radius: 3.2vw;
        margin-top: 0px;
        margin-bottom: 30px;
        box-shadow: 0px 10px 30px 0px rgba(0, 0, 0, 0.12), 28px 28px 26.4px 3.6px rgba(0, 0, 0, 0.01);
    }
    .bannerlist_content li img {
        width: 75.7vw;
        max-width: none;
        height: auto;
        max-height: none;
        border-radius: 3.2vw 3.2vw 0 0;
        margin-bottom: 6.7vw;
    }
    .bannerlist_content .banner_txt {
        padding: 0 5.6vw;
    }
    .banner_txt h3 {
        font-size: 4vw;
        margin-bottom: 15px;
    }
    .banner_txt p {
        font-size: 14px;
        margin-bottom: 6.7vw;
    }
    .about_pv h2 {
        font-size: 6.4vw;
        margin-bottom: 30px;
    }
    .about_pv .pv_content {
        width: 100vw;
        height: 56.3vw;
        max-width: none;
        max-height: none;
    }
}